SQLite database cannot be accessed although device is rooted

SQLite database cannot be accessed although device is rooted.

I've been searching this for quite a long time and I found the following steps at http://ift.tt/1QipzXN

1.Connect your device and launch the application in debug mode.

2.Copy the database file from your application folder to your sd card: execute:

./adb -d shell "run-as com.yourpackge.name cat /data/data/http://ift.tt/1Gpx5fH > /sdcard/filename.sqlite"

3. Pull the database files to your machine: execute:

./adb pull /sdcard/ execute: ./adb

4. Install Firefox SQLLite Manager: http://ift.tt/vAmaLs

5.Open Firefox SQLLite Manager and open your database file from step 3 above.

Where can I find my database file ? The data file shows empty although I have rooted my device. I'm sorry if this is a silly question but I really do not know how to access SQLite using real device.

Some said that database can be accessed once the device is rooted but not works for me. How to view the sqlite database in device android

Please help...